Corrugating and cutting tool



(Modem J. BLUMER. GORRUG ATING AND CUTTING TOOL.

No. 542,435.] Patented July 9', 1895.

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TATEES CORRUGATING AND CUTTING TOOL.

SPECIFICATION forming part of Letters Patent No. 542,435, dated July 9,1895 Application filed January 28, 1895. Serial No. 536,454. (Model) aZZwhom it may concern.-

Be it known that I,'JAMES BLUMER, a citizen v of the United States,residing at Brooklyn in the county of Kings and State of New York, haveinvented a new and useful Improvement in Corrugating and CuttingTools,of which the following is a specification.

My present invention is designed as an improvement upon the devicesecured to me by Letters Patentdated July 18, 1893, No. 501,644. Thatpatent related to a corrugating-tool for sheet metal especiallyavailable for corrugating the sheet-iron at the end of stovepipejoints,so as to adapt the one end of such stovepipe-joint to slip into theplain end of the next joint. As it was necessary to frequently cut themetal to be corrugated this corrugating-tool was therefore not ascomplete and available as it was possible to make it. In my presentinvention I combine with said corrugating-tool a cutting-tool consistingof a stationary jaw and a moving jaw operated from and by a connectionwith the moving handle, whereby the metal to be operated upon can withthe same instrument be both out as desired and corrugated; and I alsoprovide in connection with the corrugati'ng-rolls of saidcorrugating-tool a device for holding the cocentric arbor of onecorrugating-roll in the desired position, and also a device for holdin gthe cutters and jaws in a closed condition.

In the drawings, Figure 1 is a side elevation representing my improvedcorrugating and cutting tool and a modified form of arm. Fig. 2 is aplan view of the same. Fig.3 is a front elevation. Fig. 4 is a partialelevation representing the preferable form of arm and the handles andjaws as closed thereby, and Fig. 5 is a plan of the arm shown in Fig. 4.

As set forth in my aforesaid patent, the stock A is provided with ahandle A, and a second handle B is pivoted at 2 to the stock A, and thecorrugating rolls O and D are supported upon the arbors 3 and 4 thatextend out from the stock A. These corrugating rolls 0 and D worktogether similar to gears, their diameters being reduced except at theinner ends adjacent to the stock A, the outer portions of the rollsperforming the corrugating operation and the inner ends acting as teeththat remain in gear without the risk of their being separated by thesheet of material that is. introduced between the teeth of the roll tobe corrugated.

The handle B has a projection, to which the pawl E is pivoted at 6, andthis pawl E engages the teeth of the oorrugating-roll 0. The pawl E isprhvided with an eye, and a stud 7 projecting from the handle A is alsoprovided I with an eye, and a contractile spring F is connected with theeyes of the pawl E and stud 7. As the handles A and B are broughttogether by the gripping action of the hand the pawl is thrown forwardand the corrugatingrolls 0 and D are rotated and the contractile springis strained. A stop-block 5 on the handle B regulates the distance ofthe handles from each other when closed. Upon the release of the handthis spring contracts and opens the handles and returns the pawl to thenormal position for again rotating the corrugating-rolls.

The stockAis continued at its forward end and is notched for thereception of a hardened cutting-jaw a, which is connected theretopreferably by screws, and said stock A receives the pivot 10- 0f themoving cutting-jawb. This cutting-jaw b has an integral arm I) at theother side of the pivot 10, and a link 0 is connected by pivots 8 and 9to the end of this arm I) and to the handle B, and as the handle B ismoved the cutting-jaw b is operated through the medium of the link 0 anddescends over the cutting-edge of the stationary jaw a, so as to cut andseparate a sheet of metal.

The pivot 10 of the moving cutting-jaw b is preferably a pin securelyheld in the stock A above the arbor 3 of the corrugating-roll O, andthis pin or pivot 10 projects through the moving cutting-jaw and isprovided with a nut at the end to hold the jaw in place. It is, however,evident that this pivot may be constructed in any desired manner.

The oorrugating-roll D is upon an eccentric arbor 4, which projectsthrough the stock A, and to this arbor an arm is connecteghthe movementof which operates the eccentric arbor to move the roll D nearer to orfarther preferable form of arm is shown at I Figs. 4.

ICO

and 5, and this arm is made with an inwardlyprojectin'g lug t"containing a cavity holding a strong helical spring 2' (shown by dottedlines,) and which spring bears upon the surface of the hub of the stockA, which surrounds the arbor 4, to produce sufficient friction to holdthe arm 1 in whatever position it may be placed. This lug i when thehandles A B and the cutting-jaws a b are closed and the arm I is turnedto the position Fig. 4 comes up beneath the lower edge of the arm Z) andacts as a stop to'keep the handles and jaws closed and the tool in aconvenient and safe condition to be carried about by the workman. Whenthe arm 1' is turned down the corrugating-rolls O D are brought'nearertogether to perform their functions.

In Figs. 1 and 2 a modified construction of arm is shown as connected tothe eccentric arher of the corrugating-roll D to move the same nearer toor farther from the roll 0. This arm I carries a spring-actuated catch thaving a downwardly-projecting point to engage in recesses formed uponthe surface of the hub of the stock A, which surrounds the arbor 4, tohold the arm Ias set and maintain the rolls C D r the desired distanceapart. The-outer ends of the arm I and catch 11 are brought together torelease the catch andallow the eccentric arbor 4 to be turned by the armI, so as to move the corrugating-rollD out of engagement with thecorrugating-roll C, so that the sheet metal to be corrugated may beintroduced between said rolls. 7

This corrugating and cutting tool is exceed ingly convenient, becausecombining in one instrument means for cutting sheet metal andcorrugating the same, and it avoids the neces- I sity of carrying andhandling two separate tools.

I 'claim as my invention I 1. The combination with the stock, the rigidhandle, the corrugating rolls and their arbors, of a'stati'onary cuttingjaw upon the stock, a

moving cutting jaw and integral arm pivoted 1 to the stock, the movinghandle, and a connection from the end of the arm of the moving'cutter tosaid handle, substantially as and for the purposes set forth.

2. The combination with the stock and the handles, of the corrugatingrolls and means for operating the same, the arbor 3 of one corrugatingroll secured in the stock, the arbor 4 of the other corrugating rollmade eccentric and passing through the stock, and an arm secured to theend of the eccentric arbor 4 and adapted by its movement to regulate theposition of the one corrugating roll to the other, substantially as setforth.

3. The combination with the stock and the handles; of the corrugatingrolls -and means for operating the same, the arbor 3 of one corrugatingroll secured in the stock, the arbor 4 of the other corrugating rollmade eccentric and passing through the stock, and an arm secured to theend of the eccentric arbor 4 and adapted by its movement to regulate theposition of one corrugating roll to the other,

and a means connected to the arm and acting to maintain the position ofthe arm, substantially as set forth.

- 4. The 'combinationwith the stock and the handles, of the corrugatingrolls and means for operating the same, the arbor 3 of one corrugatingroll secured in the stock, the arbor 4 of the other corrugating rollmade eccentric and passing through the stock, and an arm secured tothe-end of the eccentric arbor 4 and adapted by its movement to regulatethe position of the one corrugating roll to the other, an enlargementupon the side of the arm, a, spring connected tothe arm and acting uponthe stock and producing a friction to maintain the position of the arm,the enlargetnent when the arm is turned up coming below the arm of themoving cutting jaw to maintain the handles and jaws in a closedcondition, substantially as set forth.

5. The combination with the stock, the handles', the corrugating rolls,a stationary arbor for one cortugating roll secured in the stock and aneccentric arbor for the other corrugating roll passing through the stockand the hub projecting therefrom, of a stationarycutting jaw connectedto the stock, a moving cutting jaw and integral arm pivoted to thestock, a link connecting the arm of the moving cutting jaw 'to onehandle for operating the cutters, and an arm secured to the eccentricarbor of one corrugating roll, and a spring connected to said arm andadapted to frictionally maintain said 'arm in position, sub- 'stantiallyas set forth.

Signed by me this 23d day of January, A. D. 1895.

JAMES BLUMER.

VVitn esses:

GEO. T. PINCKNE'Y, HAROLD SERRELL.

